crust

The gravitational pull of the Sun and Moon affects the Earth's crust just as it influences ocean tides.

Thucydides was a political analyst from Athens’s upper crust, an insider breaking down the Greeks’ drama in search of the “truest cause” of events.

Beneath a crust of sliced almonds, the cake is mostly ground pistachios and flour enriched with butter, eggs and sugar.

They then mapped the evolving patterns of seismic activity of each tremor and the movement and stress in the crust.

Fragile materials such as primitive cells and microbial mats were buried, squeezed, heated, and fractured as the planet's crust shifted over billions of years.